已知△ABC的顶点A(3,2),B(4,3),C(2,3),动点P(x,y)在△ABC的内部(包括边界),则yx-1的取值是( )
—Hey, Kelin. Happy new year! ______?—Ok, I guess. My grandma kept cooking and cooking, so I just kept eating.
已知点M的球坐标为 (5,5π6,4π3),求它的直角坐标